【9 LIGHT LEVELS MEET VARIOUS LIGHTING NEEDS】 There are 3 color temperatures: 3000K warm, 6500K cool, and 4200K neutral. Each color temperature offers 3 light level options: low, medium, and high. The light pattern is uniform. Adjust the light pattern by selecting different colors and brightness levels. A stable, flicker-free, and glare-free light source helps reduce eye fatigue. 【PROFESSIONAL BROAD BEAM 19 LED WITH GLARE PROTECTION】 19 LED beads provide broader lighting coverage than lamps with 10 or 14 LEDs. Illuminates up to four A4 sheets. Features glare protection design — a rear panel directs light away from the audience and toward the sheet music. Designed to illuminate sheet music quietly and evenly while minimizing visual distraction during performances. Suitable for rehearsals, concerts, and studio use. 【BUILT-IN RECHARGEABLE BATTERY】 Built-in 1800mAh lithium-ion battery provides up to 60 hours of runtime at low brightness. Charges via USB port or AC adapter. Micro-USB cable included. Four-segment blue battery indicator. Battery level button for quick status check. 【LIGHTWEIGHT AND ADJUSTABLE DESIGN】 Weighs 8.3 oz. Lightweight and portable for easy transport. Sturdy, padded base ensures stable placement on music stands, pianos, desks, and workbenches. Soft padding protects instrument surfaces. 16.5-inch flexible gooseneck allows precise positioning. Clamp base width: 2.36 inches. Can be used as a freestanding desk lamp.